4diiii power meter crank - over reading?
Hendrix2430
Posts: 119
Hi All
Just got a 4iiii crank for my bike - took it out for a 30mn spin and I think there is something wrong...
I've done FTP tests on Zwift and Trainerroad with an Elite Trainer (with Misuro B+ unit), and outside I am using the Strava Iphone App and its estimated power...not ideal I realise this, but surprisingly all of them were kind of similar.
But this time, I connected the 4iiii power meter to Strava to test it, and my average power was 380W for the ride...thats waaaay too high I think!!! That's like 6.5W/kg!
On the 4iiii app there you can change the wheel circumference - currently it is set at 2070. I run Fulcrums 700C X 25mm...
Should I change the wheel circumference to 2105 for this size wheel/tyre? (as it is recommended by several head unit manufacturers on their devices)? There isn't this option on Strava...
Thank you for the advice, I must say I'm a bit at a loss here...Cheers!
Just got a 4iiii crank for my bike - took it out for a 30mn spin and I think there is something wrong...
I've done FTP tests on Zwift and Trainerroad with an Elite Trainer (with Misuro B+ unit), and outside I am using the Strava Iphone App and its estimated power...not ideal I realise this, but surprisingly all of them were kind of similar.
But this time, I connected the 4iiii power meter to Strava to test it, and my average power was 380W for the ride...thats waaaay too high I think!!! That's like 6.5W/kg!
On the 4iiii app there you can change the wheel circumference - currently it is set at 2070. I run Fulcrums 700C X 25mm...
Should I change the wheel circumference to 2105 for this size wheel/tyre? (as it is recommended by several head unit manufacturers on their devices)? There isn't this option on Strava...
Thank you for the advice, I must say I'm a bit at a loss here...Cheers!
0
Comments
-
0
-
Yes I did that on the 4iiii app. No issues
Maybe the wheel circumference thing?0 -
Cant see how a strain gauge needs to know subtle difference between wheels, I'm afraid.
I think you need to do some further testing with it on the turbo.
Use an ANT+ headunit for the data collection.... not rely on Strava for detailed troubleshooting.0 -
Cheers, I'll try that.0
-
Did you use a torque wrench to put it on?0
-
Yes installed with a torque wrench0
-
Check you have the latest updates installed and that you do not include zeros in the average.
If still experiencing high readings i would contact 4iiii.0
